Originally Posted by HeyYou

The idea behind the PCV system is twofold. First, it evacuates all those nasty byproducts of combustion that make it past the rings from the crank case, which helps your oil last longer. Second, by drawing a light vacuum in the crank case, it actually helps the rings seal better, so you get less of the nasty blowbyproducts into the crank case in the first place. Not to mention the side benefit of less wasted power from the better ring seal.

Originally Posted by BamaRam97

I bet you were the teacher's pet when you were in school.

Originally Posted by HeyYou

Actually, I was one of the people your parents warned you to stay away from in High School..... wasn't until college in my adult years that I actually figgered it out.

Originally Posted by zman17

LOL, you still have the black leather biker jackets? I do.

Sorry off topic. Useless post to help the OP.

Originally Posted by 04 bdd

Just wondering I have a 2004 Durango with 4.7 changed the manifold gaskets and broke the vacuum thing that is at the oil fill anyone know what its called ?

Originally Posted by gdstock

Not sure, but a photo would help. Also, welcome to DF.

You may not realize, this section is 2nd Generation Rams. Only up to 2001. Posting in Durango section is where you need to be. Not that we mind you haning out here!